“既有线加强与改建”的概念、定义、翻译、参考文献-科学参考

单词	既有线加强与改建
释义	既有线加强与改建 Encyclopedia 工学铁路选线设计释 betterment and reconstruction of existing railway既有线加强与改建对运营铁路进行技术改造。通过提高既有铁路的输送能力、列车运行速度，降低运输成本，以适应经济社会发展所带来的铁路运量的快速增长以及旅客对运输质量的更高要求。
随便看	community emergency preparedness community emergency response capacity community emergency response team community employment Community environmental management community environmental roundtable meeting community evolution community facility Community Failure community fluctuation community forestry community for the aged community governance community governance on poverty alleviation centralized settlement Community Granaries community head community health-care system community health education community health movement community health nursing community health service information systems Community health service system community identity community information communication community integrated service centers

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。